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Unexpected selective alkaline periodate oxidation of chitin for the isolation of chitin nanocrystals

Liu, Peiwen ; Liu, Huan ; Schäfer, Timmy ; Gutmann, Torsten ; Gibhardt, Holger ; Qi, Houjuan ; Tian, Lin ; Zhang, Xizhou Cecily ; Buntkowsky, Gerd ; Zhang, Kai (2022):
Unexpected selective alkaline periodate oxidation of chitin for the isolation of chitin nanocrystals. (Publisher's Version)
In: Green Chemistry, 23 (2), pp. 745-751. Royal Society of Chemistry, ISSN 1463-9262, e-ISSN 1463-9270,
DOI: 10.26083/tuprints-00020297,
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Item Type: Article
Origin: Secondary publication service
Status: Publisher's Version
Title: Unexpected selective alkaline periodate oxidation of chitin for the isolation of chitin nanocrystals
Language: English
Abstract:

Periodate oxidation reaction occurring directly on chitin has been neglected in polysaccharide chemistry so far. Herein, we present the first direct alkaline periodate oxidation of chitin, which demonstrates at the same time a novel approach for the preparation of chitin nanocrystals (ChNCs). This oxidation is based on an unprecedented selective reaction of non-ordered domains of chitin by the dimeric orthoperiodate ions (H₂I₂O₁₀⁴⁻) as the major species in alkaline surroundings. Nearly 50 wt% of non-ordered regions are dissolved after sequential accelerated partial deacetylation, periodate oxidation and β-alkoxy fragmentation, which allows the isolation of up to 50 wt% of uniform anisotropic zwitterionic ChNCs.

Journal or Publication Title: Green Chemistry
Volume of the journal: 23
Issue Number: 2
Publisher: Royal Society of Chemistry
Classification DDC: 500 Naturwissenschaften und Mathematik > 540 Chemie
Divisions: 07 Department of Chemistry > Physical Chemistry
Date Deposited: 10 Jan 2022 13:43
Last Modified: 10 Jan 2022 13:43
DOI: 10.26083/tuprints-00020297
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-202974
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/20297
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